# import numpy as np
# from matplotlib import pyplot as plt
#
# x = np.arange(1,11)
# y =  2  * x +  5
# plt.title("Matplotlib demo")
# plt.xlabel("x axis caption")
# plt.ylabel("y axis caption")
# plt.plot(x,y)
# plt.show()
import numpy as np
import matplotlib.pyplot as plt

X = np.linspace(-np.pi, np.pi, 256, endpoint=True)
C,S = np.cos(X), np.sin(X)

plt.plot(X,C)
plt.plot(X,S)

plt.show()
